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N. A. HULL.

LOCK. Nol 311,898. Patented Febi '10, 1885.

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NICHOLAS A. HULL, OF PERU, INDIANA.

LOCK.

SPECIFICATION forming part of Letters Patent No. 311,893, dated February l0, 1885.

Application filed May 19, 1883. Renewed July 21, 1884. (Model.)

To all whom t may concern:

Be it known that I, NIoHoLAs A. HULL, of the city ot' Peru and State of Indiana, have made a new and useful Improvement'in Drawer-Locks, o'f which the following is a specification.

The nature of this invention relates to that class of locks employed in cabinets for locking and unlocking simultaneously two drawers, the lock being located in the dividingrail between drawers; and my present invention consists in the general construction of the lock, and is designed as an improvement upon my lock patented November ll', 1879, No. 221,464.

ln order to aid others skilled in the art to which my invention relates to make and use it, I will proceed to describe its construction and operations with reference to the drawings, forming a part of this specification, in which- Figure lis afront View of a cabinetof drawers, having` a portion broken away to show the locking mechanism. Fig. Zis a, front elevation of the lock. Fig. 3 is a perspective view of the locking-bolt detached. Fig. 4 is a back view of Fig. 2, with bolt turned down to a horizontal position. Fig. 5 is a perspective ofthe back plate, B. Fig. 6 is atop view of the lock as it appears within the partingrail P. Fig. 7 is a perspective of the front plate, A, formed with a spring-bar, d, integral. Fig. 8 is .a front and end perspective of my lock, as hereinafter set forth.

The lock proper consists of three parts-viz., the back plate, B, the double-acting bolt R, and front plate, A. The back plate is provided with a right-angle portion, B. (See Figs. 5 and 8.) Said part is provided with two holes, a a. The plateB has two slots, S S, through its vertical portion, (see Fig. 5;) also ajournal-bearing hole,H. The frontplate, A, has also a journal-bearing hole, H. (See Figs. 7 and 8.) rlhe end portions of the plate Aare bent at right angles, excepting the righthand upper corner, a, which is separated from the lower portion by cutting out a portion. The part a is slightly bent inward, as shown in Fig. 8, for the purposes hereinafter' nnentioned. The double-turn bolt R is provided with two journals, li h, located at the sides near thecenterof thebolt. (See Fig. 3.) Extending through the journals is a square hole the plate A, with one ol the journals L passing through the hole H of said plate. The plate B is then placed over the opposite side ofthe bolt, with the opposite journal it passing through the hole H of said plate, with the ends C C passing through the slotted holes S S, said ends then being turned over, as specified, thus locking all the parts together :and forming two journal-bearings for the bolt R. The parts thus arranged are inserted into a mortise cut into the parting-rail, as shown in Figs. 1 and 6, the lock being secured therein by two nails or the like driven through the holes a a of the plate B into the back portion ofthe parting-rail. The front portion of the parting-rail is provided with a key-hole in line with the square hole through the journal It of the bolt R. (See Fig. 6.) rlhe key is inserted into the bolt, (the drawers D D being in posi tion, as shown in Fig. 1,) turning the bolt to a vertical position, as shown in Fig. l. The ends of said bolts enter the slots cut in the drawers, thus locking them, then turning the bolt back until the reduced upper end portion strikesY upon the right-angle portion of the plate A, as shown in dotted lines of Figs. 2 and 4, when the bolt will lie in a horizontal position within the parting'rail, when the drawers may be opened. The spring-plate t has a constant pressure against the bolt R, thus holding it in its different positions, and prevents the bolt from moving until turned by a key. Then the bolt is turned to a vertical position,the spring-plate c passes inward, as shown by dotted lines of Fig. 6, and is also shown in Fig. 8. l/Vhen the bolt is turned IOO down, the spring-plate a is forced outward. The lower right-band corner of the bolt is provided With a square opening, o. The lock maybe placed in the mortise with said square opening upward, When the square opening may engage With a plate upon hinged lids or covers, thus making a cheap and simple lock for such purposes.

Having thus fully described my present invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a locking device, the combination of the bolt R, pivoted Within theplates AB, the reduced upper end of said bolt being limited in its downward movement bythe right-angle 15 portion of the plate A, with the spring a of the plate A forming a bearing against thev bolt R, when arranged and combined as specied.

2. In a locking device, the double-turn bolt R, reduced at one end, With a square openino"` o, at the opposite end, said bolt being pivoted Within the plates A B and held in position by the spring a of the plate A, as and for the purposes set forth.

Witnesses: NICHOLAS A. HULL.

A. J. HUFFMAN, I 'I'. G. STEWART. 

